I still think that your last move should be highlighted on the board. I have webtv, and I'm not sure that it shows up right if you try to switch things around so that the game notations are in a different place. So it would be much easier to be able to just look at the board, rather than scroll all the way down to the game notation.. Yes!, just being lazy !!! :-D
Also, maybe the highlight around your opponent's last move should be highlighted a different color than the blue or red. I know on webtv, I have a hard time telling which square is highlighted. (If I had a huge movie theater sized TV, it might show up easier)
None of that is all THAT important to me, but I wanted to add my opinion..

:-P